USGS researchers have found that the Juan de Fuca plate beneath northern Oregon is about 5 km shallower than previously thought, potentially increasing peak ground shaking from a Cascadia megathrust ...

A research team from University of Tsukuba and collaborating institutions has clarified why M9-class megathrust earthquakes recur off the Kamchatka Peninsula with an unusually short cycle of 73 years.

A strong earthquake struck the waters northeast of Tonga on March 22, 2026, registering at a shallow depth that placed it among the more notable seismic events in the South Pacific this year. The U.S.

The Cascadia Subduction Zone is unusually quiet for a megathrust fault. Spanning more than 600 miles from Canada to California, the fault marks the convergence of the Juan de Fuca and North American ...

Add Yahoo as a preferred source to see more of our stories on Google. Three earthquakes rattled the U.S. West Coast on Wednesday, serving as another reminder that one of North America's most dangerous ...